You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

67 lines
3.6 KiB

/* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
using System.Text;
namespace Alphaleonis.Win32.Filesystem
{
internal static partial class NativeMethods
{
public static readonly bool IsAtLeastWindows7 = OperatingSystem.IsAtLeast(OperatingSystem.EnumOsName.Windows7);
public static readonly bool IsAtLeastWindowsVista = OperatingSystem.IsAtLeast(OperatingSystem.EnumOsName.WindowsVista);
/// <summary>The FindFirstFileEx function does not query the short file name, improving overall enumeration speed.
/// <para>&#160;</para>
/// <remarks>
/// <para>The data is returned in a <see cref="WIN32_FIND_DATA"/> structure,</para>
/// <para>and cAlternateFileName member is always a NULL string.</para>
/// <para>This value is not supported until Windows Server 2008 R2 and Windows 7.</para>
/// </remarks>
/// </summary>
public static readonly FINDEX_INFO_LEVELS FindexInfoLevels = IsAtLeastWindows7 ? FINDEX_INFO_LEVELS.Basic : FINDEX_INFO_LEVELS.Standard;
/// <summary>Uses a larger buffer for directory queries, which can increase performance of the find operation.</summary>
/// <remarks>This value is not supported until Windows Server 2008 R2 and Windows 7.</remarks>
public static readonly FindExAdditionalFlags LargeCache = IsAtLeastWindows7 ? FindExAdditionalFlags.LargeFetch : FindExAdditionalFlags.None;
/// <summary>DefaultFileBufferSize = 4096; Default type buffer size used for reading and writing files.</summary>
public const int DefaultFileBufferSize = 4096;
/// <summary>DefaultFileEncoding = Encoding.UTF8; Default type of Encoding used for reading and writing files.</summary>
public static readonly Encoding DefaultFileEncoding = Encoding.UTF8;
/// <summary>MaxDirectoryLength = 255</summary>
internal const int MaxDirectoryLength = 255;
/// <summary>MaxPath = 260
/// The specified path, file name, or both exceed the system-defined maximum length.
/// For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.
/// </summary>
internal const int MaxPath = 260;
/// <summary>MaxPathUnicode = 32000</summary>
internal const int MaxPathUnicode = 32000;
/// <summary>When an exception is raised, bit shifting is needed to prevent: "System.OverflowException: Arithmetic operation resulted in an overflow."</summary>
internal const int OverflowExceptionBitShift = 65535;
}
}